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Other Noncurrent Liabilities | 9 Months Ended
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Sep. 30, 2019
Other Liabilities Disclosure [Abstract] |
Other Noncurrent Liabilities | Other Noncurrent Liabilities The components of other noncurrent liabilities as of September 30, 2019 and December 31, 2018 were:
| September 30, 2019 |  | December 31, 2018
Pension and retiree medical obligations | $ | 72,731 |  |  | $ | 80,667 |
Transition tax payable | 17,127 |  |  | 17,127 |
Liability for uncertain tax positions | 3,286 |  |  | 3,183 |
Deferred revenue | 2,369 |  |  | 3,027 |
Liability for construction of new leased facility | — |  |  | 11,616 |
Lease liability | 53,284 |  |  | — |
Contingent consideration for acquisition | — |  |  | 3,375 |
Other | 20,630 |  |  | 19,219 |
Total other noncurrent liabilities | $ | 169,427 |  |  | $ | 138,214 |

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